Further Description of Sighting: On Wednesday (12-29-10) at around 10:30pm in southern York PA (locally known as Leaders Heights PA) I witnessed a bright orange light moving slowly across the sky.

There was no sound, the light appeared to be comparable in strength to that of a single car light from about 750 feet away, it was steady with no blinking, was around 1-2 miles away, and moved across the sky at a speed and altitude similar to that of a helicopter.

It paused once, moved forward, then eventually stopped. After about 15 seconds it appeared to move up into the upper atmosphere as the light slowly become smaller and smaller until it wasn’t any brighter than the neighboring stars before disappearing.

A high altitude jet appeared in the same part of the sky seconds before the light began moving into the upper atmosphere. It took about 10seconds for light to disappear once it started shrinking. Even though the jet was most likely several miles higher in the sky, I could hear the jet! What did I see?